How to use ImprovMX SMTP with Gmail

ImprovMX SMTP is very easy to set up within Gmail. You'll be able to switch between your alias ( and the host Gmail address for each piece of sent mail. Follow these steps to get started!

Note: You must be a premium or business member to use ImprovMX SMTP. Additionally, this method references free/personal Gmail accounts. Mileage will vary for Gsuite/Workspaces accounts and will depend on organizational settings.

1 ) Generate your SMTP user in the ImprovMX dashboard at

  • Click the settings cogwheel next to your domain name, and then select SMTP Credentials.

  • Fill in the username (alias) and create a password. Save this password for use with future steps.


2 ) If you haven't done so already, add one DMARC and two DKIM records to your domain as per the "DNS settings" panel.

Read more here

3 ) Create your alias in Gmail.

  • Open Gmail and head into your "Accounts and Import" settings: Settings Cogwheel -> All Settings -> Accounts and Import

  • Under Send mail as: choose Add another email address

  • Fill in the settings as follows:


Anything you wish

Email Address

Treat as an alias

No (uncheck)

SMTP Server





SMTP password generated in step 1

Secure connection using


create your alias with these settings in gmail

4 ) Confirm your alias

  • In your email (the address used as the forward-to for the alias you're adding), you will receive a confirmation email. Verify your alias by entering the code or clicking the link in the received email.

5 ) Send an email from your alias.

  • Compose a new email and select your ImprovMX alias on the "From" line.

  • Fill in a valid "To" recipient (don't use the same Gmail address that you're also forwarding to as per this guide)

  • Fill in a test subject and body, and click send.

  • Confirm receipt of the test email!

* If nothing happens when you first click "send" from Gmail, refresh the page and try again.

You should now be able to use ImprovMX SMTP to send as your alias within Gmail. Repeat these steps to add additional aliases to Gmail. If you have any questions or issues regarding this process, please feel free to shoot us a message and we'll get back to you promptly.

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